19" HP L1955 DVI 720p Rotating LCD Monitor w/USB Hub (Black) - Rotates to Portrait or Landscape View! 19-inch HP L1955 DVI Rotating LCD Monitor General Features: Color: Black Screen Size: 19-inch 1280 x 1024 @ 75 Hz native resolution 0.294 mm pixel pitch Viewing Angles: 176 degrees (H/V) Brightness: up to 250 nits Contrast Ratio: up to 1000:1 16 ms response time Horizontal Frequency Range: 30 - 82 kHz Vertical Frequency Range: 56 - 75 Hz Tilt Angle: - 5 degrees +35 degrees